The Sky Blues earned hosting rights for the decider against either Melbourne Victory or Brisbane Roar, after defeating Perth Glory 3-0 on Saturday night.

A crowd of 21,938 turned out at Allianz Stadium for the win over Perth, with the runaway premiers averaging just over 16,000 fans per game this season.

Sudden death: Sydney v Glory pic special

Arnold was confident that the Sydney public would pack out Allianz Stadium for Sunday’s decider, which will be the first in the harbour city since 2013 when more than 42,000 fans saw Central Coast defeat Western Sydney.

“There was a good crowd tonight and there will be a full house next week of 40,000 Sky Blue supporters against whoever we have to play,” Arnold said.

“We’ve got a good turnaround of eight days before round 29 and we’ll work hard during the week, recover well and be ready.”

Arnold was full of praise for his side’s performance, saying they could have scored more against Glory having led 3-0 at the break.

“It was an outstanding performance especially on that pitch,” he said.

“I thought we could have had at least another four goals. It was just a totally dominant performance.

“The aim at half time was to go for a fourth and a fifth but Perth are always a dangerous side.

“They had their moments and it’s about controlling those moments.

“We have some fantastic players technically and our pressing tonight was outstanding. We didn’t let them play at all.”

Sudden death: Sydney v Glory pic special